Stopper attachment for ink-bottle



(No Model.)

G. "R. WEED.

STOPPER ATTAGHMBNT FOR INK BOTTLES.

Patented July 4, 1893.

WITNESSES.

g 1 INVENTOH m I A TTOHNE Y S UNITED STATES- PATENT OFFICE.

GUSTAVUS R. WEED, OF ORANGE, NEW JERSEY.

STOPPER ATTACHMENT FOR INK-BOTTLES.

SPECIFICATION forming part of Letters Patent No. 500,982, dated July 4,1893.

Application filed January 13,1893. stun No. 458.241. (No model.)

To all whom it may concern.-

Be it known that I, GUsrAvUs R. WEED, of Orange, in the county of Essexand State of New Jersey, have invented a new and Improved StopperAttachment for Ink-Bottles, of which the following is a specification,reference being had to the annexed drawings, forming apart thereof, inwhich- Figure 1 is a vertical transverse section of an ink bottle towhich my improved attachment has been applied; and Fig. 2 is a verticaltransverse section of a modified form.

Similar letters of reference indicate corresponding parts in both views.

The object of my invention is to provide an attachment for ink bottlesand. ink stands, which will force up a small quantity of ink for use,when a slight pressure is applied by the pen, and which will practicallyseal the bottle so that evaporation cannot take place, thus permittingof keeping the ink in usable condition until it is exhausted.

The invention will first be described and then specifically pointed outin the claim.

To the neck of the ink bottle A, whichis of ordinary form, is fitted astopper B, preferably made of soft rubber. The said stopper B is boredaxially and in it is inserted a tube 0, having formed upon the upper endthereof a funnel-shaped chamber a, closed at the top by the flexiblediaphragm D. The said diaphragm D is furnished with a rim 1), which isstretched over the upper edges of the walls of the chamber a. The middleof the diaphragm D is provided with an aperture 0, and the saiddiaphragm is reinforced or thickened around the aperture, to cause it topress firmly on the tube 01 inserted in the diaphragm and extendingthrough the tube 0. Upon the upper end of the tube dis formed a funnelE, and to the lower end of the tube dis attached a flexible tube 6,which is of sufficient length to extend downward to the bottom of thebottle A. When the funnel E is pressed by the pen, the

diaphragm D is depressed, thus compressing I the air in the chamber aand in the ink bottle A, thereby forcing upwardly, by the pressure ofthe air created within the bottle, a sufficient amount of ink to partlyfill the funnel and charge the pen. When the funnel E is released by theremoval of the pen, the diaphragm D regains its original position bymeans of its own elasticity, and in so doing creates a partial vacuumin'the chamber a and in the bottle, and thus causes air to be drawn inthrough the tubes 01,6, and through the body of ink contained in thebottle, thus replacing with air the ink removed by the pen.

In the modification shown in Fig. 2, the chamber a. is made wholly ofelastic material, and its upper and lower sides are perforated, thelower side receiving the tube 0, which extends into the perforatedstopper B, while the upper side receives the tube (1 projectingdownwardly from the funnel E. The tube 0 in this case is enlarged indiameter and extends upwardly in the chamber a, to form a stop forlimiting the compression of the elastic chamber. When the funnel E ispressed by the application of a pen, the air is forced from the chambera through the space around the tube d into the bottle, as in the othercase.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- An attachment for ink bottles comprising thecentrally apertured stopper B, an air tube 0 entering said aperture toforce air down into the bottle and provided with a funnel shaped orflared upper end a, a flexible diaphragm D provided with a rim 1)embracing the rim of the funnel shaped end a and having a centralaperture cprovided with thickened walls, the ink funnel E having an inktube at extending down through the aperture 0 and through the air tube 0and of less diameter than said air tube, substantially as set forth.

GUSTAVUS R. WEED.

Witnesses:

E. M. CLARK, G. SEDGWIOK.

